Patents by Inventor LENZING AKTIENGESELLSCHAFT

LENZING AKTIENGESELLSCHAFT has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20130189474
    Abstract: The present invention relates to the use of a multilobal cellulosic staple fiber as a filling fiber. Furthermore, the invention relates to a cellulosic staple fiber which is characterized in that the cross-section of the fiber has three or more lobes the titer of the fiber is 1.0 to 30 dtex, preferably more than 3.0 dtex, especially more than 5.0 dtex, preferably 5.6 to 10 dtex, especially preferred more than 6.0 dtex, especially 6.3 to 10 dtex the wet modulus of the fiber fulfils the following formula: Wet modulus (cN/tex)?0.5*?T wherein T is the titer of the fiber in dtex the breaking strength of the fiber in the conditioned state fulfils the following formula: Breaking Strength (cN/tex)?+2*T wherein T is the titer of the fiber in dtex.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 25, 2013
    Applicant: Lenzing Aktiengesellschaft
    Inventor: Lenzing Aktiengesellschaft
  • Publication number: 20130049244
    Abstract: The invention relates to a method and a device for producing Lyocell fibres which are extruded from a cellulose solution of water, cellulose and tertiary amine oxide in a spinning head (25). The cellulose solution is obtained in a number of process steps directly from the cellulose (3, 4) or with the formation of a cellulose suspension. Since the degree of polymerisation decreases in the course of processing the cellulose through to its extrusion in the cellulose solution, with the processing of celluloses with a low degree of polymerisation there is the risk that the endless moulded bodies (2) extruded in the spinning head (25) exhibit defective quality.
    Type: Application
    Filed: October 24, 2012
    Publication date: February 28, 2013
    Applicant: LENZING AKTIENGESELLSCHAFT
    Inventor: LENZING AKTIENGESELLSCHAFT